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Full Discussion: Account lockout policy
Operating Systems Linux Red Hat Account lockout policy Post 302423504 by maverick_here on Friday 21st of May 2010 07:50:18 AM
Old 05-21-2010
Account lockout policy

Hi all;

I m using Red Hat Enterprise Linux Server release 5.1 (Tikanga) and I'm trying to setup password lockout policy so that a user account locks out after 3 failed attempts.

Here are the entires of my /etc/pam.d/system-auth

Code:
#%PAM-1.0
# This file is auto-generated.
# User changes will be destroyed the next time authconfig is run.
auth        required      pam_env.so
auth        required      pam_tally.so onerr=fail no_magic_root
auth        sufficient    pam_unix.so nullok try_first_pass
auth        requisite     pam_succeed_if.so uid >= 500 quiet
auth        required      pam_deny.so

account     required      pam_unix.so
account     required      pam_tally.so deny=3 no_magic_root reset
account     sufficient    pam_succeed_if.so uid < 500 quiet
account     required      pam_permit.so

password    requisite     pam_cracklib.so try_first_pass retry=3
password    sufficient    pam_unix.so md5 shadow nullok try_first_pass use_authtok
password    required      pam_deny.so

session     optional      pam_keyinit.so revoke
session     required      pam_limits.so
session     [success=1 default=ignore] pam_succeed_if.so service in crond quiet use_uid
session     required      pam_unix.so

I have a /var/log/faillog.

How ever when i test it by failing to authenticate a user it is not locking the user account.Is there something that I'm missing.Please advise.

Regards,
Syed

Moderator's Comments:
Mod Comment Added code tags

Last edited by Scott; 05-21-2010 at 09:18 AM..
 

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pam_stack(8)						   System Administrator's Manual					      pam_stack(8)

NAME
pam_stack - recurse into other PAM stacks SYNOPSIS
auth required /lib/security/pam_stack.so service=foo session optional /lib/security/pam_stack.so service=foo password optional /lib/security/pam_stack.so service=foo account optional /lib/security/pam_stack.so service=foo DESCRIPTION
In a nutshell, pam_stack lets you "call", from inside of the stack for a particular service, the stack defined for any another service. The intention is to allow multiple services to "include" a system-wide setup, so that when that setup needs to be changed, it need only be changed in one place. ARGUMENTS
debug turns on debugging via syslog(3). service=name tells pam_stack.so to execute the stack defined for the service name, which will usually be another file in /etc/pam.d. EXAMPLE
/etc/pam.d/imap: auth required /lib/security/pam_stack.so service=system-auth auth required /lib/security/pam_shells.so /etc/pam.d/system-auth: auth sufficient /lib/security/pam_krb5.so auth sufficient /lib/security/pam_unix.so shadow nullok auth required /lib/security/pam_deny.so CAVEAT
Because recursion is fully supported, there is potential to really break things by having a stack call itself either directly or via mutual recursion. BUGS
Let's hope not, but if you find any, please email the author. AUTHOR
Nalin Dahyabhai <nalin@redhat.com> Red Hat Linux 2001/01/30 pam_stack(8)
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